/Engine/Plugins/Experimental/AVCodecs/AVCodecsCore/Source/AVCodecsCore/Public/AVUtility.h
Retrieves an object of a specific type, and if it does not exist in the map then create an invalid reference to it (which must then be set by the caller).
Shared pointer reference to the mapping, invalid if the object did not already exist.
template<typename TType, typename [TEnableIf](API\Runtime\Core\Templates\TEnableIf)< [TIsDerivedFrom](API\Runtime\Core\Templates\TIsDerivedFrom)< TType, TBaseType >::Value, int >::type> [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< TType > & Edit()